Dripless pouring-bottle seal.



CLARENCE s. JACKSON, or NEW YOnK,--N. Y.,Ass1cNoR TOEOUEING CORK COMPANY, OE .NEW YORK, N. Y.

DRIIYPLESS POURING-BTTLE SEAL.

Specification :of Letters Patent.

Patented May 2s, 1912.

Application filed August 17, 1911. Serial No. 644,694.

To all 'whom t may concern Be it known that I, yCLARENCE S. JACK-j soN, a citizen of the United States, residing in New York city, in the county of Newi York and State of New York, have invent`I ed certain new and useful Improvements in,y Dripless Pouring-Bottle Seals, of which the following is a specification.

My present invention "relates to Aan im, provement in bottle closures ofthe type that able at will.

'control the'volume kof flow of the containedl fluid, said control of the volume being vari-pv S poses and when the portion Gis forced into One of the advantages of my Adevice is` that due to the peculiar arrangement of the contacting faces of the Closure member, I

f am enabled to regulate the opening from a. yfullflow down to a complete sealing of said stopper. The stopper may also be regu lated'so that it maybe used as a dropper, the number of drops solutely controllable.l

The most Vimportant feature of'my inven tion, however, lies in the manner in which the flow through the stopper is controlled so that it is positively -'dripless In other words, when through pouring, the bottle may be set upright andk not a drop of fluid; vcan, escape to run down the sides of the 'bo-ttle, but is sucked backwardand inward to finally flow into the main contentsr This important feature isldue "entirely to the peculiar manner in whichthe pouring passage is constricted, 'thereby causing the law of capillarity to control the fluid contained within the stopper passage *properi-mmedp, ately after the pressure/of the contents 1sremoved or the bottle replaced in an up-` right position.

A further advantage is the simplicity ofi the stopper, it being comprised of only -four part-s and its consequent cheapness of manufacture makes it more desirable.

A further improvement consists of coating the seal with a glossy nishing material, preferably waterproof, thereby enhancing the creeping or capillary action of the iuids, especially in the pouring passage.

In the drawings, Figure 1 shows the seal in section, andlas'taken on line 1-1, Fig-2. Fig. 2 is a bottom View of Fig. 1. Fig. 3 is a sectional view of another modification, in section. Fig. 4 is a sectional view of another modication of Fig. 1.

In Fig. 1 the closure member 1 is shown per minute lbeing ab- 4 j as having Vembedded therein a threaded shank member 2, the threaded po-rtion being -screwed into a bushing or body member with a sealing disk 4 lbetween the opposing surfaces, 'forming the passage 5. While the closure lmember `1 may be made of any suitable material I prefer to make it and its bushing member Bof Abass-wood as this wood has advantages over cork, andl also has distinguishing features-of itsown as a sealing material. A tscompressibility is not so great as cork but is enough for alllpractical purafbottle neck 7 a partof which is shown in section in Fig. 1, I findit lis very diiiicult to remove .the-seal without badly Vmarring the same. The most important feature of my4 pouring passage 5 that when the liuid passes through the apertures 8 it enters the central portion of the passage 5 which is of less width than the outer annular mouth 9, andy upon ibeing set in uprightposition the said constricted portion. 10 and the downward or 'bowl-shaped lformation of said passage cause the iiuid remaining in said passageway to 4flow back towardthe! apertures 8 and this double force of capillarityA andgravity sucks back any of the fluid remaining in said passage or overhanging the'edge 11, and is then returned to the bottle interior.

A further improvement in making the stopper absolutely dripless is the formation of the thin edgesll and l2 formed by the two lips on the bushing 3 andthe closure members 1, respectively; This thin edge tends to cut the stream cleanly and short when the bottle isbeing returned to the vertical after pouringandthese edges afford little or no surfaces for a drop to cling to and due to the phenomena Of capillarity previouslymentioned, the drop is forced to retreat within the connes of the lips 11 and 12 and from thence to flow back into the bottle proper.

The difference, previously noted, of vertical width in the passageway 5 may be obtained by two diierent methods, one of which, as indicated in Fig. l, is caused by the sealing face 12 of the closure member l being spherical with a radius equal to A and the depressed or seat portion 13 being of a somewhat larger radius, as B. This construction, it'will be noted, causes a constriction at thc central portion of the passage 5, as at 10, and leaves a wide flaring mouth around the periphery, as indicated at 9, so that when the seal is drawn down tight upon the bushing member 3 and has compressed the sealing disk 4, the pouring mouth, as at 9, is still slightly open.

Another form of obtaining the bowl shape passage 5 with a constricted point in said passage, is by forming the closure member l similar to that indicated in Fig. l with the bushing member 3 having a cone shaped seat instead of a spherical one, as indicated in Fig. 3. The angle C being just enough to cause the iuid to iiow back into the apertures 8 and it is obvious that a construction of the pouring passage occurs at a point l0 of the spherical seat 12.

In Fig. 4 the members l and 3 in their general construction are similar to that indicated in Fig. 3, with the exception of the screw member 14 which is reversed and embedded in the bushing member 3, thus permitting the closure member Ito-ride up and down upon the opposite end of the said screw, whereas in the construction shown in Fig. l the operation is exactly reversed.

As a further aid to capillary action'of'the Huid, the seal is coated with a glossy coat of preferably Huid-proof material, such as japan, this glossy coating causing the fluid to creep, thus aiding in capillarilly condensing the fluid contained in the bowl-like passage 5.

I am aware that bottle seals have been made with apertures therein and with an adjustable stopper for closing said apertures, but none of these stoppers have mader fying the capillary action of the fluids provision or have structure that will prevent drip after pouring. I have practically proved by tests that it is impossible to obtain a drip from this pouring seal and this important advantage is due entirely to the arrangement of the bowl shaped passage having its constricted portion near the apertures of the bushing and coating the parts with a glossy material which aids in amplibetween the two contiguous surfaces. The sealing disk 4, previously noted, is preferably composed of a porous, fibrous, material, such as paper saturated with paraffin or other satisfactory compound, and the disk being slightly compressible, effects-to seal the apertures 8 when the closure member l is screwed down upon its seat. Instead of permitting the disk 4 to be loose between the two members l and 3, I prefer to have it Xed on the under seat portion l2 of the member l.

Having thus described my invention, I claim:

A dripless pouring bottle seal comprised of an apertured flared bushing and an adjustable stopper, an annular fluid passageway therebetween, said passageway being formed by the contiguous adjustable surfaces between said bushing and said stopper and being depressed at its central portion and leading upwardly and terminating in an annular double lipped pouring mouth, the said lips being substantially in the same vertical plane, the vertical width of said passageway being constricted at its central interior and terminating at a greater width at its outer diameter for the purpose of causing a capillary and gravitational withdrawal of fluid from the outer diameter of said passageway when the pressure of the contents of the bottle is removed.

CLARENCE S. JACKSON.

Vitnesses:

H. D. PENNEY, FRED. J. DOLE.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

